Which protocol retains a message in a mailbox on a server, even after the message is accessed by a user on a local client device?

Which protocol retains a message in a mailbox on a server, even after the message is accessed by a user on a local client device?

  • IMAP4
  • DNS
  • SMTP
  • POP3
    Answers Explanation & Hints:

    The IMAP4 protocol will keep any message accessed by a client device in the mailbox on the server. The message is removed from the mailbox only after it is deleted by a user on the client device.

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